Read Sony STR-VX500 Service Manual online
SERVICE MANUAL
MICROFILM
STR-VX500
E Model
FM STEREO/FM-AM RECEIVER
SPECIFICATIONS
This set is the tuner and amplifier
section in MHC-VX500.
section in MHC-VX500.
Amplifier section
The following measured at AC 120, 220, 240V 50/60 Hz
DIN power output (Rated) (FRONT)
DIN power output (Rated) (FRONT)
120 + 120W (6
Ω
at 1kHz DIN)
Continuous RMS power output (Reference)
FRONT SPEAKER: 150 + 150W
(6
(6
Ω
at 1kHz, 10% THD)
Inputs
MD/VIDEO 1 IN (phono jacks): voltage
450/250mV, impedance 47k
450/250mV, impedance 47k
Ω
AV INPUT AUDIO (phono jacks): voltage
250mV, impedance 47k
250mV, impedance 47k
Ω
MIX MIC 1/2 (phone jack): sensitivity 1mV,
impedance 10k
impedance 10k
Ω
Output
MD/VIDEO 1 OUT (phono jacks): voltage
450/250mV, impedance 1k
450/250mV, impedance 1k
Ω
PHONES (stereo phone jack): accepts
headphones of 8
headphones of 8
Ω
or more.
FRONT SPEAKER:
accepts impedance of 6 to 16
accepts impedance of 6 to 16
Ω
REAR SPEAKER:
accepts impedance of 16
accepts impedance of 16
Ω
SUPER WOOFER:
Voltage 1V, impedance 1k
Voltage 1V, impedance 1k
Ω
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0MHz
Antenna terminals
75
Ω
unbalanced
Intermediate frequency
10.7MHz
AM tuner section
Tuning range
MW: 531 – 1,602kHz (with the MW tuning
interval set at 9kHz)
530 – 1,710kHz (with the MW tuning
interval set at 10kHz)
SW: 5.95 – 17.90MHz (with the SW tuning
interval set at 5kHz)
interval set at 9kHz)
530 – 1,710kHz (with the MW tuning
interval set at 10kHz)
SW: 5.95 – 17.90MHz (with the SW tuning
interval set at 5kHz)
Intermediate frequency
450kHz
Antenna
AM loop antenna External antenna terminal
General
Power requirements
120V, 220V or 230 – 240V AC, 50/60Hz
Adjustable with voltage selector
Adjustable with voltage selector
Power consumption
290W
Dimensions (w/h/d)
Approx. 288
×
205
×
375mm
Mass
Approx. 8.6kg
Design and specifications are subject to change without notice.
2
TABLE OF CONTENTS
1.
GENERAL
····································································· 3
2.
DISASSEMBLY
2-1.
Sliding Panel Assembly ······················································ 5
2-2.
Level Slider ········································································ 5
3.
SERVICE MODE
·························································· 6
4.
DIAGRAMS
4-1.
Circuit Boards Location ····················································· 9
4-2.
Block Diagrams
• Main Section ·································································· 10
• Power Section ································································ 11
• Main Section ·································································· 10
• Power Section ································································ 11
4-3.
Printed Wiring Board Main Section ······························· 13
4-4.
Schematic Diagram Main (1/2) Section ························· 14
4-5.
Schematic Diagram Main (2/2) Section ························· 15
4-6.
Schematic Diagram Power Amp Section ······················· 16
4-7.
Printed Wiring Board Power Amp Section ····················· 17
4-8.
Schematic Diagram Display Section ······························ 18
4-9.
Printed Wiring Board Display Section ··························· 19
4-10. Schematic Diagram Sliding Panel Section ····················· 20
4-11. Printed Wiring Board Sliding Panel Section ·················· 21
4-12. Printed Wiring Board Trans Section ······························· 22
4-13. Schematic Diagram Trans Section ································· 23
4-14. Schematic Diagram AV/Mic Section ······························ 24
4-15. Printed Wiring Board AV/Mic Section ··························· 25
4-16. IC Block Diagrams ··························································· 26
4-17. IC Pin Function ································································ 29
4-11. Printed Wiring Board Sliding Panel Section ·················· 21
4-12. Printed Wiring Board Trans Section ······························· 22
4-13. Schematic Diagram Trans Section ································· 23
4-14. Schematic Diagram AV/Mic Section ······························ 24
4-15. Printed Wiring Board AV/Mic Section ··························· 25
4-16. IC Block Diagrams ··························································· 26
4-17. IC Pin Function ································································ 29
5.
EXPLODED VIEWS
5-1.
Case and Sliding Panel Section ········································ 32
5-2.
Front Panel Section ·························································· 33
5-3.
Slide Mechanism Section ················································· 34
5-4.
Circuit Boards and Back Panel Section ···························· 35
6.
ELECTRICAL PARTS LIST
··································· 36
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED LINE WITH
MARK
!
ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
3
Front Panel
SECTION 1
GENERAL
1
MOVIE button
2
MUSIC button
3
GAME button
4
PLACE button
5
P FILE button
6
EFFECT ON/OFF button
7
OPEN/CLOSE button
8
TUNER BAND button
9
STEREO/MONO button
0
MEMORY button
qa
KARAOKE PON/MIX button
qs
MIC LEVEL/ECHO VOL dial
qd
MIX MIC1 jack
qf
GROOVE button
qg
VOLUME dial
qh
M
+ button
qj
ENTER/NEXT button
qk
MULTI JOG STATION dial
ql
m
– button
w;
NON-STOP button
wa
EDIT button
ws
FLASH button
wd
PLAY MODE button
wf
REPEAT button
wg
PHONES jack
wh
LOOP button
wj
CLOCK/TIMER SET button
wk
TIMER SELECT button
wl
FUNCTION button
e;
PROLOGIC button
ea
DSP button
es
DBFB button
ed
DISPLAY/DEMO button
ef
I/
1
(POWER) button
eg
MIX MIC2 jack
eh
KEY CONTROL (
#
)
ej
KEY CONTROL (
2
)
1
2
3
4
5
6
7
8
9
0
qa
qs
qd
qf
eg
qg
qjqh
wg
wh
wj
wk
wl
ed
ef
e;
ej
eh
qk
ql
wa
wd
wf
w;
ea
es
ws
4
Rear Panel
1
SYSTEM CONTROL jack
2
ANTENNA terminal
3
REAR SPEAKER terminal
4
MONITOR OUT jack
5
FRONT SPEAKER terminal
6
MD/VIDEO 1 jack
2
3
4
1
5
6